Android 无法在工作线程上同步获取firebase id令牌
我有一个扩展FirebaseMessagingService的类,其中在onMessageRecieve()方法中,我使用worker manager安排工作。在工作类中,我想将Firebase Id令牌发布到我的服务器(我使用的是同步截击请求),但对于Firebase Id令牌,我在工作类中使用Tasks.wait(),但logcat显示以下错误:Android 无法在工作线程上同步获取firebase id令牌,android,multithreading,firebase,firebase-cloud-messaging,android-workmanager,Android,Multithreading,Firebase,Firebase Cloud Messaging,Android Workmanager,我有一个扩展FirebaseMessagingService的类,其中在onMessageRecieve()方法中,我使用worker manager安排工作。在工作类中,我想将Firebase Id令牌发布到我的服务器(我使用的是同步截击请求),但对于Firebase Id令牌,我在工作类中使用Tasks.wait(),但logcat显示以下错误: E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.calendarapp,
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.calendarapp, PID: 29746
java.lang.IllegalStateException: Must not be called on the main application thread
at com.google.android.gms.common.internal.Preconditions.checkNotMainThread(com.google.android.gms:play-services-basement@@17.1.1:51)
at com.google.android.gms.common.internal.Preconditions.checkNotMainThread(com.google.android.gms:play-services-basement@@17.1.1:48)
at com.google.android.gms.tasks.Tasks.await(Unknown Source:16)
at com.example.calendarapp.MyWorker$1.onComplete(MyWorker.java:130)
at com.google.android.gms.tasks.zzj.run(Unknown Source:4)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7397)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)
FirebaseMessagingService
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFirebaseMsgService";
FirebaseAuth mAuth;
@Override
public void onMessageReceived(@NonNull RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
sendNotification(remoteMessage);
scheduleJob();
}
private void scheduleJob() {
// [START dispatch_job]
Constraints constraints = new Constraints.Builder()
.setRequiredNetworkType(NetworkType.CONNECTED)
.build();
OneTimeWorkRequest work = new OneTimeWorkRequest.Builder(MyWorker.class)
.setConstraints(constraints)
.build();
WorkManager.getInstance().beginWith(work).enqueue();
// [END dispatch_job]
}
public void sendNotification(){
....
}
}
我的工人阶级
public class MyWorker extends Worker {
Context context_i;
private static String url="https://my_url";
public MyWorker(
@NonNull Context context,
@NonNull WorkerParameters params) {
super(context, params);
context_i=context;
}
@Override
public Result doWork() {
final DatabaseHandler databaseHandler=new DatabaseHandler(context_i);
HashMap<String,String> map_post=getPostObject();
RequestFuture<JSONObject> future = RequestFuture.newFuture();
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, new JSONObject(map_post), future, future);
VolleySingleton.getmInstance(getApplicationContext()).addToRequestQueue(request);
try {
try {
databaseHandler.deleteDatabase();
} catch (JSONException e) {
e.printStackTrace();
}
JSONObject response = future.get(60, TimeUnit.SECONDS);
Iterator<String> keys = response.keys();
while(keys.hasNext()){
String eventId= keys.next();
try {
JSONObject jsonObject = response.getJSONObject(eventId);
String marker="none";
if(jsonObject.has("markedAs")){
marker=jsonObject.getString("markedAs");
}
ArrayList<String> attachmentsList= new ArrayList<>();
ArrayList<String> attachmentNameList=new ArrayList<>();
if(jsonObject.has("attachments")) {
JSONObject attachmentJson = jsonObject.getJSONObject("attachments");
Iterator iterator = attachmentJson.keys();
while(iterator.hasNext()){
String name_of_attachment= (String) iterator.next();
attachmentsList.add(attachmentJson.getString(name_of_attachment));
attachmentNameList.add(name_of_attachment);
}
}
ListItems item =new ListItems(
jsonObject.getString("name"),
jsonObject.getString("desc"),
jsonObject.getString("byName"),
jsonObject.getString("date"),
"Time: "+jsonObject.getString("time"),
"Venue: "+jsonObject.getString("venue"),marker,eventId,attachmentsList
);
item.setNameList(attachmentNameList);
item.setPhotoUrl(jsonObject.getString("photoURL"));
databaseHandler.addEvent(item);
} catch (JSONException e) {
e.printStackTrace();
}
}
databaseHandler.close();
Log.d("worker_tag", response.toString());
return Result.success();
} catch (InterruptedException e) {
e.printStackTrace();
// exception handling
return Result.failure();
} catch (ExecutionException e) {
e.printStackTrace();
return Result.failure();
// exception handling
} catch (TimeoutException e) {
e.printStackTrace();
return Result.failure();
}
}
public HashMap<String,String> getPostObject() {
final HashMap<String,String> mapToken=new HashMap<String, String>();
FirebaseAuth mAuth = FirebaseAuth.getInstance();
final FirebaseUser user = mAuth.getCurrentUser();
if (user != null) {
user.getIdToken(true).addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
public void onComplete(@NonNull Task<GetTokenResult> task) {
try {
Tasks.await(task);
if(task.isSuccessful()){
mapToken.put("token", Objects.requireNonNull(task.getResult()).getToken());
Log.d("PostToken", Objects.requireNonNull(task.getResult().getToken()));
Log.d("PostObject", String.valueOf(new JSONObject(mapToken)));
}
} catch (ExecutionException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
}
return mapToken;
}
公共类MyWorker扩展了Worker{
语境i;
专用静态字符串url=”https://my_url";
公职人员(
@非空上下文,
@非空WorkerParameters(参数){
超级(上下文,参数);
上下文i=上下文;
}
@凌驾
公共成果工作(){
final DatabaseHandler DatabaseHandler=新的DatabaseHandler(上下文_i);
HashMap\u post=getPostObject();
RequestFuture=RequestFuture.newFuture();
JsonObjectRequest=newJSONObjectRequest(request.Method.POST,url,newJSONObject(map_POST),future,future);
GetMinInstance(getApplicationContext()).addToRequestQueue(请求);
试一试{
试一试{
databaseHandler.deleteDatabase();
}捕获(JSONException e){
e、 printStackTrace();
}
JSONObject response=future.get(60,TimeUnit.SECONDS);
迭代器键=response.keys();
while(keys.hasNext()){
字符串eventId=keys.next();
试一试{
JSONObject JSONObject=response.getJSONObject(eventId);
String marker=“无”;
if(jsonObject.has(“markedAs”)){
marker=jsonObject.getString(“markedAs”);
}
ArrayList attachmentsList=新的ArrayList();
ArrayList attachmentNameList=新的ArrayList();
如果(jsonObject.has(“附件”)){
JSONObject attachmentJson=JSONObject.getJSONObject(“附件”);
Iterator Iterator=attachmentJson.keys();
while(iterator.hasNext()){
字符串名称_of_attachment=(字符串)迭代器.next();
add(attachmentJson.getString(附件的名称));
附件名称列表。添加(附件的名称);
}
}
ListItems项目=新的ListItems项目(
jsonObject.getString(“名称”),
jsonObject.getString(“desc”),
jsonObject.getString(“byName”),
jsonObject.getString(“日期”),
“时间:”+jsonObject.getString(“时间”),
“地点:”+jsonObject.getString(“地点”)、标记、事件ID、附件列表
);
item.setNameList(附件NameList);
setPhotoUrl(jsonObject.getString(“photoURL”);
databaseHandler.addEvent(项目);
}捕获(JSONException e){
e、 printStackTrace();
}
}
databaseHandler.close();
Log.d(“worker_标记”,response.toString());
返回Result.success();
}捕捉(中断异常e){
e、 printStackTrace();
//异常处理
返回Result.failure();
}捕获(执行例外){
e、 printStackTrace();
返回Result.failure();
//异常处理
}捕获(超时异常e){
e、 printStackTrace();
返回Result.failure();
}
}
公共HashMap getPostObject(){
final HashMap mapToken=新HashMap();
FirebaseAuth mAuth=FirebaseAuth.getInstance();
最终FirebaseUser=mAuth.getCurrentUser();
如果(用户!=null){
user.getIdToken(true).addOnCompleteListener(新的OnCompleteListener(){
@RequiresApi(api=Build.VERSION\u CODES.KITKAT)
@凌驾
未完成的公共void(@NonNull任务){
试一试{
任务。等待(任务);
if(task.issusccessful()){
mapToken.put(“token”,Objects.requirennull(task.getResult()).getToken());
Log.d(“PostToken”,Objects.requirennull(task.getResult().getToken());
Log.d(“PostObject”,String.valueOf(新的JSONObject(mapToken));
}
}捕获(执行例外){
e、 printStackTrace();
}捕捉(中断异常e){
e、 printStackTrace();
}
}
});
}
返回mapToken;
}
工作类不是后台线程吗?如果是,那么为什么错误显示“不能应用于主应用程序线程”
提前感谢。user.getIdToken(true)
返回一个任务
。因为您已经在后台线程上,所以根本不应该使用addOnCompleteListener()
-只需调用任务。立即等待()
以同步获取结果
if (user != null) {
Task<GetTokenResult> task = user.getIdToken(true)
try {
GetTokenResult result = Tasks.await(task);
mapToken.put("token", Objects.requireNonNull(result).getToken());
Log.d("PostToken", Objects.requireNonNull(result).getToken()));
Log.d("PostObject", String.valueOf(new JSONObject(mapToken)));
} catch (ExecutionException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if(用户!=null){
Task Task=user.getIdToken(true)
试一试{
GetTokenResult结果=任务。等待(任务);
mapToken.put(“token”,Objects.requirennull(result.getToken());
Log.d(“PostToken”,Objects.requireNonNull(result.getToken());
Log.d(“PostObject”,String.valueOf(新的JSONObject(mapToken));
}捕获(执行例外){
e、 printStackTrace();
}捕捉(中断异常e){
e、 printStackTrace();
}
}
user.getIdToken(true)
返回一个任务
。因为您已经在后台线程中,所以根本不应该使用addOnCompleteListener()
-只需立即调用Tasks.wait()
即可同步获取结果
if (user != null) {
Task<GetTokenResult> task = user.getIdToken(true)
try {
GetTokenResult result = Tasks.await(task);
mapToken.put("token", Objects.requireNonNull(result).getToken());
Log.d("PostToken", Objects.requireNonNull(result).getToken()));
Log.d("PostObject", String.valueOf(new JSONObject(mapToken)));
} catch (ExecutionException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
if(用户!=null){
Task Task=user.getIdToken(true)
试一试{
GetTokenResult结果=任务。等待(任务);
mapToken.put(“token”,Objects.requir)